2112212220101 has 8 divisors (see below), whose sum is σ = 2238654775680. Its totient is φ = 1986013528768.

The previous prime is 2112212220059. The next prime is 2112212220113. The reversal of 2112212220101 is 1010222122112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2112212220101 is a prime.

It is a super-2 number, since 2×2112212220101² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 2112212220101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112211220101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60948221 + ... + 60982866.

It is an arithmetic number, because the mean of its divisors is an integer number (279831846960).

Almost surely, 2^{2112212220101} is an apocalyptic number.

It is an amenable number.

2112212220101 is a deficient number, since it is larger than the sum of its proper divisors (126442555579).

2112212220101 is a wasteful number, since it uses less digits than its factorization.

2112212220101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121932123.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2112212220101 its reverse (1010222122112), we get a palindrome (3122434342213).

The spelling of 2112212220101 in words is "two trillion, one hundred twelve billion, two hundred twelve million, two hundred twenty thousand, one hundred one".